V-Clip post with pivoting

• US 10,709,553 B2
• Filed: 07/26/2016
• Issued: 07/14/2020
• Est. Priority Date: 08/12/2015
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Backus, Andrew J. H., Salahieh, Ali, Pan, Ning, Carroll, Stanley A.
• Primary Examiner(s): Pellegrino, Brian E
• Application Number:
  US15/219,606
• Publication Number:
  US 20170042671A1
• Time in Patent Office: 1,449 Days
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments

Abstract

A replacement heart valve may include a tubular anchor member actuatable between an elongated delivery configuration and an expanded deployed configuration, a buckle member fixedly attached to the anchor member, a post member axially translatable relative to the buckle member, the post member including a latch portion configured to engage the buckle member when the anchor member is in the deployed configuration, an actuator member including a pivot pin proximate a distal end thereof, the actuator member being releasably connected to a proximal end of the post member at the pivot pin, and a valve leaflet attached to the post member. The post member may be disposed distal of the anchor member when the anchor member is in the elongated delivery configuration.

Claims

1. A replacement heart valve locking mechanism, comprising:

a buckle member fixedly attached to a tubular anchor member;

a post member axially translatable relative to the buckle member;

a valve leaflet attached to the post member; and

an actuator member including a pivot pin proximate a distal end of the actuator member, the actuator member being releasably connected to a proximal end of the post member at the pivot pin;

wherein the post member includes a latch portion configured to engage the buckle member such that movement of the post member distally relative to the buckle member is prevented,

wherein the post member is reversibly actuatable between a first orientation, wherein the latch portion extends distally from a body portion of the post member in an everted delivery configuration and a second orientation wherein the latch portion extends proximally from the body portion of the post member.

2. The replacement heart valve locking mechanism of claim 1, wherein the buckle member includes a protrusion configured to release the actuator member from the post member.

3. The replacement heart valve locking mechanism of claim 2, wherein the post member includes two arms spaced apart by a longitudinally-oriented slot, the two arms being configured to releasably engage the actuator member.

4. The replacement heart valve locking mechanism of claim 3, wherein the longitudinally-oriented slot narrows distally.

5. The replacement heart valve locking mechanism of claim 4, wherein the protrusion is configured to splay apart the two arms as the post member is translated proximally.

6. The replacement heart valve locking mechanism of claim 1, wherein the post member includes a cantilevered leg extending proximally from a distal end of the post member.

7. The replacement heart valve locking mechanism of claim 1, wherein the buckle member is substantially rigid.

8. The replacement heart valve locking mechanism of claim 1, wherein the actuator member is pivotable relative to the post member at the pivot pin.

9. The replacement heart valve locking mechanism of claim 1, wherein the latch portion is configured to be deflected by the buckle member as the post member is translated proximally through the buckle member.

10. The replacement heart valve locking mechanism of claim 1, wherein the pivot pin is rigid.

11. A replacement heart valve, comprising:

a tubular anchor member actuatable between an elongated delivery configuration and a deployed configuration;

a buckle member fixedly attached to the anchor member;

a post member axially translatable relative to the buckle member, the post member including a latch portion configured to engage the buckle member when the anchor member is in the deployed configuration;

an actuator member having a first distally displaced delivery position and a second proximally displaced position; and

a valve leaflet attached to the post member;

wherein the post member is everted distal of the anchor member when the anchor member is in the elongated delivery configuration and is disposed within the anchor member when the anchor member is in the deployed configuration.

12. The replacement heart valve of claim 11, wherein the latch portion is configured to engage the buckle member such that movement of the post member distally relative to the buckle member is prevented.

13. The replacement heart valve of claim 11, wherein the post member includes two arms spaced apart by a longitudinally-oriented slot, the two arms being configured to releasably engage the actuator member.

14. The replacement heart valve of claim 13, wherein the longitudinally-oriented slot narrows distally.

15. The replacement heart valve of claim 13, wherein the buckle member includes a protrusion configured to release the actuator member from the post member.

16. The replacement heart valve of claim 15, wherein the protrusion is configured to splay apart the two arms as the post member is translated proximally.

17. The replacement heart valve of claim 11, wherein the post member includes a cantilevered leg extending proximally from a distal end of the post member and the valve leaflet is attached to the cantilevered leg.

18. The replacement heart valve of claim 11, wherein the actuator member includes a flattened body portion configured to axially translate through the buckle member.

19. The replacement heart valve of claim 18, wherein the flattened body portion prevents relative rotation between the actuator member and the buckle member.

20. The replacement heart valve of claim 11, wherein the latch portion is configured to be deflected by the buckle member as the post member is translated proximally through the buckle member.